/Engine/Source/Runtime/MessagingCommon/Public/MessageEndpoint.h
Publishes a message to all subscribed recipients within the specified scope.
template<typename MessageType> void Publish ( MessageType * Message, EMessageScope Scope, const [FTimespan](API\Runtime\Core\Misc\FTimespan) & Delay, const [FDateTime](API\Runtime\Core\Misc\FDateTime) & Expiration )